Half to bybon a



E. R. KNOWLES.` STORAGE-BAT'TBRY.

Patented Jan.' 8, 1884.

N. PETERS. Pholollhgnphur. Waxhlngun. DA C.

(Nol Model.)

NrTan STnTns PATENT @Trice EDVARD R. KNOVLES, OF BROOKLYN, 'NEXV YORK, ASSIGNOR OF ONE- HALF TO BYRON A. BROOKS, OF SAME PLACE.

STORAGE- SPECIFICATION forming` part of Letters Patent No. 291,850, dated January 8, 1884.

Application filed June 2, 188:2.

To a/ZZ whom it may concern,.-

Be it known that I, EDWARD R. KNowLEs, residing in Brooklyn, in the county of Kings and State of New York, have invented certain new and useful Improvements in Storage- Batteries, of which the following` is a description in such full, clear, concise and exact terms as to enable any one skilled in the art to which it appertains to make and use the same, refence being hadto the accompanying drawings, making part ofthis specification, and to the nres and letters of reference marked thereon- Figure 1 of said drawings being a perspective of said battery,partly in section, and Figs. 2, 3, and 4, detail parts of. the same.

My invention consists of a novel method of constructing` a storage-battery, the object of which is to secure a very powerful battery action.

My improved battery consists of two or more electrodes, each of which is composed of alternate plates or disks of lead and oxide of lead, or lead and sponge-lead, piled one upon the other, each electrode beginning and ending with a plate of metallic lead, and all of them being connected and combined into abattery.

In the drawings, Fig. 2 represents a top view and a vertical section ol' one of the electrodes, A, a number of which are combined in the battery illustrated by Fig. l. In these electrodes, a is a disk oi' metallic lead, rectangular in form, and having a rectangular hole,

f d, in its center and a circular hole, c, in each of its ends. bis a disk, of precisely the same form, made of oxide of lead or sponge-lead. These disks are made into a pile, as shown, and held .together by means of a lead rod passing through holes c and riveted at both ends, forming an electrode. I-Iaving made as many of these electrode-piles as I desire to incorporate into one battery, I take a suitable chamber or vessel, B, and fit it with a false bottom, O, of wood or any suitable material. In the false bottom I cut a series of holes to correspond in number and form to the electrodes the battery is to contain. Into the holes of this bottom the several electrodes are set, thus retaining the bottom of each electrode always inthe same position. Now, to secure the top (No model.)

of each electrode, I make a skeleton cover, c', precisely like the false bottom, and put it in the top of the chamber B, the top of each electrode being embraced by a corresponding mortise' in the cover. The false bottom and the skeleton cover being both iliade to exactly iit the chamber B, as well as each electrode, the whole is securely held in place. The electrodes being placed in the chamber, as described, I connect them electrically by the conductors E E E E and the positive and negative poles D and D'. The chamber is then charged with acidulated water and closed with a tight cover to prevent evaporation.

By Fig. 3 ofthe drawings is shown a section and top View of an electrode-pile differing from Fig. 2 in that the disks or plates have but one hole through the center, into which a lead bolt or rod is placed, riveted at both ends to hold the disks together.

By Fig. 4 of the drawings is shown a perspective of one of the disks composing the piles contained in the battery.

In constructing my battery I use in the formation of the positive electrodes alternate plates, buttons, or disks of lead and compressed sponge-lead; and in the formation of my negative electrodes alternate plates, buttons, or disks or lead and compressed oxide of lead, thereby making a pile-electrode and securing a very powerful battery action.

Having thus described my invention, I claim and desire to secure by Letters Patentl. In a storage-battery, the combination of positive electrodes composed of alternate plates of metallic lead and compressed spongelead, and negative electrodes composed of alternate plates of metallic lead and compressed oxide of lead, the said plates being mechanically united by means of rivets, substantially as described.

2. In a storage-battery, the combination of positive electrodes composed of alternate layers of metalliclead and compressed spongelead, and negative electrodes composed of alternate layers of metalliclead and compressed oxide of lead, all of which, both metals and oxides, are perforated, substantially as described, for the purpose specied.

3. In a storage-batter),r coinposed of co1npound electrodes, the combination of rivets c c with the alternate layers of metallic lead and coin pressed spongedead, forming one electrode of the battery, and also with the alternate layers of metallic lead and compressed oxide of lead, forming the other electrode oi" the bat-y tery, substantially as described.

4. A storage-battery composed of compound electrodes, the positive electrodes being,` con1- posed of alternate layers of metallic lead and compressed sponge-lead, and the negative elec trodes being composed of alternate layers of 

